Acetylene-gas lamp.



No. 643,I0|. Patented Feb. I3, |9011. W. A. BARRGWS.

ACETYLENE GAS LAMP.

(Application med Fb. 25, 1899.

( N 0 M o d e I if@ um Mzgy.

i Nits IVALTER A. BARROWS, OF CHICAGO, ILLINOIS.

AC ETY LEN E-GAS LANI P.

SPECIFICATION forming part of Letters Patent No. 643,101, dated February 13, 1900.

Application filed February 25, 1399. Serial No. 706,800. (No model.)

To all whom t may concern:

Beit known that I, WALTER A. BARRows, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Acetylene-Gas Lamps, of which the following is a specification.

The object of my invention is to produce an acetylene-gas lamp which shall be simple, efficient, and reliable and contain novel and advantageous features of construction and of operation, as will be apparent from the description hereinafter given.

In the drawings, Figure 1 represents a sectional elevation of my lamp; Fig. 2, a view in perspective of the carbid cup; Fig. 8, a view of the friction-ring; Figs. 4, 5, and 6, sectional elevations showing the structure of the three principal parts of the lamp-body before being assembled.

One of the novel features of my lamp re sides in the construction and the assembling of the main parts or chambers thereof. The burner-chamber is formed by a cup l, having a flaring mouth holding a lens 2 and having an end or bottom 3. As shown in Fig. 4, the cup is reduced at its closed end, so as to receive the open end of a cup or casing 4, forming the water-chamber 5. When the parts are assembled, the end 3 completes the waterchamber and forms a partition between such chamber and the burner-ehamber- The casing or cup l is provided with a suitable number of draft or air holes 6 in front of the reflector 7 and with a suitable number of ventilation-holes 8, passing through the joint between the cups 1 and 4 and entering behind the reflector, so as to prevent undue heating both of the reflector and the water. The cups l and 4 may be soldered or otherwise secured together after being assembled.

Secured in the bottom of the water-chamber is a plug 9, having a screw-threaded end l0 outside the chamber. This plug has a bore 1l, screw-threaded at its top and cone-shaped or tapered at the lower end to form a seat for a needle-valve l2, whose stem extends upwardly through the water-chamber and extraneous of the shell or casing thereof, as seen in Fig. 1, being provided with a pin 13,Where by the valve may be operated. This valve regulates the ow of water from the waterchamber through one or more transverse openings 14 in the plug, which afford co1nmunication with the bore or passage governed by such valve. The water chamber has any suitable inlet-port, such as the port l5, normally closed by a cap 16. l

The carbidchamber or gas-generating chamber consists of a similar cylindrical cup 17, having its upper end 18 closed, except for a screw-threaded opening lf), receiving the end l0 of the plug, whereby the carbid-chamber may be attached to the water-chamber and a communication therebetween simultaneously afforded. A carbid-cup 20, having bottom openings 21, is arranged within the carbid-chamber and receives the charge of carbid. Upon the bottom of this cup is fixed a ring 22 or the like, so that the cup may be withdrawn when desired. The lower end of the carbid-chamber is closed by a bottom cap 23, screwing upon such chamber. In order to secure a friction for. the carbid-cup, which is not iitted gas-tight, and to hold it in proper position therein, I provide a frictionring 24, having,'preferably, though not necessarily, rentrant ends 25, as clearly shown in Fig. 3. This ring is normallyT somewhat greater in diameter than the carbid-chamber and is sprung therein and forced against the bottom of the carbid-cup, as seen in Fig. 1, thereby forming a simple and efficient device for the purpose desired. The rentrant ends are not absolutely necessary, but afford an easy means for inserting the ring, as such ends may be 'grasped by the fingers and the diameter of `the ring reduced when the ring is to be inserted.

The carbid-chamber below the carbid-cup has an outlet port or passage 26, communieating With a gas-supply pipe 27, extending up along the front side of the carbid-chamber and entering the burner-chamber where it is provided with the usual tip or burner 28.

The carbid-chamber being charged and the parts being in the position shown in Fig. 1 the gas can be generated by the admission of water caused by the opening of the valve l2. The amount of water admitted is governed by the amount of opening of the valve. The gas generated will pass downward through the carbid and through the holes 21` to the space below the cup and will then pass through port 26 and pipe 27 to the burner.

Although I have described more or less pre- IOO cise forms and details of construction I do not intend to be understood as limiting myself thereto, as I contemplate changes in form, the proportion of parts, and the substitution of equivalents, as circumstances may suggest or render expedient and without departing from the spirit of my invention.

I claiml. An acetylene-gas lamp comprising three open-ended cups, forming respectively the burner-chamber, water` chamber and carbidchamber, the burner-chamber cup and waterchamber cup being arranged end to end, and

the carbid-chamber cup arranged adjacent to the water-chamber cup,valvecontrolled communication between the water-chamber and carbid-chamber, a closure for said carbidchamber and a gas-outlet from the latter chamber.

2. An acetylene-gas lamp comprising two open-ended cups arranged end to end to form an open-ended burner-chamber and a closed water-chamber, the end or bottom of the burner-cl'lambcr cup forming a partition between said chambers and thereby closing the water-chamber, a carbid-chamber arranged adjacent to the wate1-chamber,1neans of communication between the water-chamber and carbid-chamber and a gas-outlet i rom the latter chamber.

3. An acetylene-gas lamp comprising an open-ended cup forming a burner-chamber and being reduced in diameter at its closed end, a second open-ended cup of substantially the same diameter forming a water-ch amber with its open end engaging the reduced end of the first cup and secured thereto in axial alinement, the end of bottom of the iirst cup forming a partition between the chambers and a third open-ended cup arranged with its open end downward and forming a generating-chamber secured at its other end to the other cups with its longitudinal axis at right angles to the longitudinal axis of the other cups, means of communication between the water-chamber and generating-chamber and a gas-outlet from the generating-chamber.

4. An acetylene-gas lamp comprising an open-ended cup forming a burner-chamber, a second open-ended cup secured to the burnerchamber and forming a Water-ehamber,a third open-ended cup forming a generating-chamber, a removable closure for said third cup, a screw-plug connection between said second and third cups having a valve-governed passage for the ow of water from the waterchamber into the generating-chamber and a gas-outlet from the generating-chamber.

5. An acetylene-gas lamp comprising a casing forming a water-chamber, a plug secured in the bottom of the water-chamber and having a valve-governed bore, said plug having one end extending through the water-chamber casing and provided with screw-threads, a cup, one of whose ends is open and the other closed except for an opening engaging the plug whereby the cup is secured to the water-chamber, a closure'for the open end of the cup and a gas-outlet from such cup.

6. An acetylene-gas lamp comprising a casing forming a water-chamber, a plug secured in the bottom of the water-chamber and having a bore provided with a valve-seat and communicating through openin gs with the waterchamber, a valve operating in the bore to govern said openings, a generating chamber or cup, one of whose ends is open and the other closed, means for securing the cup at its closed end to the plug and simultaneously provide communication between the waterchamber and the generating-chamber and a gas-outlet from the generating-chamber.

7. An acetylene-gas lamp comprising a water-chamber having in its bottom a plug 9 provided with a bore 1l and an extraneous screw-threaded portion 10, and openings 14 communicating between the water-chamber and said bore, a valve l2 operating in the bore to govern said openings, a cup forming a generating-chamber and having one end open and the other closed except for a screwthreaded opening 19 which receives the screwplug, and a gas-outlet from the generatingchamber.

8. An acetylene-gas lamp comprising an open-ended cup forming a burner-chamber, a second open-ended cup arranged end to end with the first cup and forming a water-chamber, a third open-ended cup forming a generating-chamber, means of communication between said chambers, a carbid-cup arranged within the generating-chamber, a frictionring located below the carbidcup and independent of such cup, and a gas-outlet from the generating-chamber.

9. An acetylene-gas lamp comprising an open-ended cup forming a burner-chamber, a second open-ended cup arranged end to end with the first cup and forming a water-chainber, a third open-ended cup forming a generating-chamber, means of communication between said chambers, a carbid-cup arranged within the generating-chamber,a friction-ring located below the carbid-cup and comprising an open-wire circular loop having rentrant ends, said ring being independent of such cup, and a gas-outlet from the generatingchamber.

lO. An acetylene-gas lamp comprising a water-chamber, a generating-chamber, means of communication between said chambers, a carbid-cup arranged within the generatingchamber and having a gas-passage through its bottom, a withdrawing-ring secured to the bottom of the cup, a friction-ring below the cup and independent of such cup, and a gasoutlet leading from the generating-chamber below the cup.

WALTER A. BARROVVS.

Witnesses:

SAMUEL E. HIBBEN, LOUISE SERAGE.

IOO 

